Home / 47,852.56-66,026.91-28,978.75

Finding the Fourth Proportional to 47,852.56, 66,026.91 and 28,978.75

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Solution

The fourth proportional to 47,852.56, 66,026.91 and 28,978.75 is: 39,984.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,852.56 : 66,026.91 = 28,978.75 : x
  2. Step 2: Convert to fraction form
    47,852.56/66,026.91 = 28,978.75/x
  3. Step 3: Cross multiply
    47,852.56x = 66,026.91 × 28,978.75
  4. Step 4: Simplify right side
    47,852.56x = 1,913,377,318.16
  5. Step 5: Solve for x
    x = 1,913,377,318.16/47,852.56
  6. Step 6: Final answer
    x = 39,984.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.